docs: def has_no_flat_neurites(neuron, tol=0.1, method='ratio'):
      '''Check that a neuron has no flat neurites
  
      Arguments:
          neuron(Neuron): The neuron object to test
          tol(float): tolerance
          method(string): way of determining flatness, 'tolerance', 'ratio' \
          as described in :meth:`neurom.check.morphtree.get_flat_neurites`
  
      Returns:
          CheckResult with result
      '''
      return CheckResult(len(get_flat_neurites(neuron, tol, method)) == 0)